DIY Electronic kit LED colorful Sunflower soldering project bluetooth speaker 21 flashing modes 4 Spectrum modes

Installation tutorial Description at the end of this page↓↓↓↓↓↓

Installation tutorial

step 1.The long pin of the LED is the positive terminal and the short pin is the negative terminal in the flower PCB.Insert all the LEDs into the holes according to the PCB labeled corresponding to the positive and negative poles, then reverse the soldering on the back side (be careful not to dummy solder) and cut off the excess pins.

STEP 2. Solder the microcontroller holder on the back of the flower PCB, pay attention to the chip holder, chip, PCB board gap direction consistent

step 3. Soldering Infrared receiver head on the front of the PCB, note the direction,Solder the capacitors, the short pin is the negative pole,

for the slanted end of the PCB

step 4.Install the microcontroller by pressing the pins slightly to 90 degrees before inserting them into the chip holder, Notch in same direction

step 5.Welding switches, power sockets, led, bluetooth module sockets

step 6 .Solder the beveled end of the support plate to the PCB holes

and the other end to the main board, taking care not to reverse the direction of soldering,then power on test.

step 7.Solder speaker, red wire positive, black negative,and plug the bluetooth module test

step 8 Fixed Bluetooth module and speaker